From 4f6e98e74f76be16ea3db9f94bbc2dc3bc776fe6 Mon Sep 17 00:00:00 2001
From: Tao Huang <huangtao@rock-chips.com>
Date: Wed, 1 Jul 2020 19:29:36 +0800
Subject: [PATCH] serial: 8250: Call serial8250_init() early when
 CONFIG_ROCKCHIP_THUNDER_BOOT=y

Before dw8250_platform_driver probe.

Change-Id: I46382f1d563ed75897e964c625b91b6f8be0481a
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
---
 drivers/tty/serial/8250/8250_core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index b0fa2207eedf..346405368b1a 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1211,7 +1211,11 @@ static void __exit serial8250_exit(void)
 #endif
 }
 
+#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT
+rootfs_initcall(serial8250_init);
+#else
 module_init(serial8250_init);
+#endif
 module_exit(serial8250_exit);
 
 MODULE_LICENSE("GPL");